{"instruction": "You are an expert in relationship extraction. Please extract relationship triples that match the schema definition from the input. Return an empty list for relationships that do not exist. Please respond in the format of a JSON string.", "schema": ["instrument agency", "member collection", "else", "entity destination", "component whole"], "input": "this train has as many as six sets of doors on each side to shorten the time for passengers to get on and off at station ."}
{"instrument agency": [], "member collection": [], "else": [], "entity destination": [], "component whole": [{"subject": "train", "object": "doors"}]}